Blade assembly for a portable blender



FIG. 1 is a top perspective view of a blade assembly for a portable blender showing the new design;

FIG. 2 is a top view thereof;

FIG. 3 is a side view thereof, an opposite side view being substantially the same;

FIG. 4 is another side view thereof, an opposite side view being substantially the same; and,

FIG. 5 is a top perspective view of another implementation of the blade assembly for a portable blender showing the new design.

The portions shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for a blade assembly for a portable blender, as shown and described. 